Hi! can anyone help me please, I dont even know where to start.
if Carlos has 42 books he wants to store on shelves. Each book is
134 inches thick. He can buy 3-foot-long shelves for $27.99 each.
How much will it cost to shelve the books?

Cost to Shelve the Books : $ 4375.77

Step-by-step explanation:

See procedure below;

Number of books ⇒ 42 books,

Thickness of each book ⇒ 134 inches,

Number of books * thickness of each ⇒ Total thickness of all 42 books,

42 * 134 ⇒ Thickness of all 42 books : 5628 inches,

Thickness of all 42 books in feet : 5628 in ⇒  5628 / 12 ⇒ 469 feet,

Length of 1 shelf ⇒ 3 feet,

Cost per shelf ⇒ $ 27.99,

3 * 27.99 ⇒ Cost of 1 shelf : 83.97,

Thickness of all books / Length of 1 shelf ⇒ Number of shelves,

469 / 3 ⇒ ( About ) 156 1/3 shelves,

Cost per shelf * Number of shelves ⇒ Cost to shelve the books,

Cost to Shelve the Books : $ 4375.77

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: